/**
* Load version
* @param integer $vers
* @return boolean
* @throws Exception
*/
public function loadVersion($vers)
{
$this->rejectChanges();
$versionObject = $this->_model->getStore()->getVersionObjectName();
$vc = Model::factory($versionObject);
$data = $vc->getData($this->getName(), $this->getId(), $vers);
$pKey = $this->_config->getPrimaryKey();
if (isset($data[$pKey])) {
unset($data[$pKey]);
}
if (empty($data)) {
throw new Exception('Cannot load version for ' . $this->getName() . ':' . $this->getId() . '. v:' . $vers);
}
$iv = false;
$ivField = false;
if ($this->_config->hasEncrypted()) {
$ivField = $this->_config->getIvField();
if (isset($data[$ivField]) && !empty($data[$ivField])) {
$iv = base64_decode($data[$ivField]);
}
}
foreach ($data as $k => $v) {
if ($this->fieldExists($k)) {
if ($this->_config->isMultiLink($k) && !empty($v)) {
$v = array_keys($v);
}
try {
if ($this->_config->isEncrypted($k)) {
if (!empty($iv)) {
$v = $this->_config->decrypt($v, $iv);
}
}
if ($k !== $this->_config->getPrimaryKey() && $k !== 'author_id') {
$this->set($k, $v);
}
} catch (Exception $e) {
throw new Exception('Cannot load version data ' . $this->getName() . ':' . $this->getId() . '. v:' . $vers . '. This version contains incompatible data. ' . $e->getMessage());
}
}
}
$this->_version = $vers;
}